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images.jpegThe International SSBN Agency is trying to establish requirements, if any, for separate identification of different ebook versions. There is quite some controversy going on now as to whether an ebook should have the and ISBN at all, and if so whether it should be the same as the print ISBN or different, and if the ebook has its own ISBN should it have a separate number for each of the formats it is published in (epub, mobi, txt, etc.).

The Agency has started a survey, which you can find here, and all interested parties should respond and help formulate a policy for the future.

Thanks to Resource Shelf for the heads up.

 
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